had to? no..
plenty of hands he could have considering the weak small bet on the flop... its easier when you know what the guy had.. you have to look at it before then, and focus on the decisions he faced..
he raised pre, got called in two spots.. bet small on the flop, got called, which could be a Q sure, but it could be a smaller pair, a flush draw... rightfully checked in position on the turn, which could have looked like a sign of weakness to the other player and if he was drawing or had a smaller pair, he could be bluffing
with busted draw or value betting the small pair thinking its good.. No way you can make a profit laying this hand down time after time on this board, your throwing money away, i think he played it good..
Next time post this in the tournament discussion and dont post the results, they are irrelevant, you need to focus on decisions.. its real easy to say you should have folded when they knwo the results..